[fpc-pascal] InstantFPC and argv

[Marco van de Voort]

In our previous episode, Mattias Gaertner said:
> It's not big. The RTL lacks little functions for scripts. For
> example download an URL, get a list of files in a directory, load a
> xml file, test a RE.
> 
> Running pascal programs as scripts is only the first step. The
> next step is to provide a bunch of units that make
> commons tasks one liners. 

I agree. I've added some minor stuff in recent versions:

- base64 encode/decode in one function (instead of streaming only)
- symbolic has a simple "quickevaluate" to quick do calculations 
	(  like 2+4+6, even simple var substitution is possible )

I recently copied the TProcess wiki example to get the output of an exe in a
string for the 3rd or 4th time, so that was my next target.

A bit like ExecuteProcess, one variant that operates on a whole cmdline (but
only the most basic separation) and one array of const style. 

> That's why people use perl et al.

That is IMHO a bridge too far :-)